Remote monitoring software

[Indybird]

So I am setting up a LAN this coming Thursday. It just so happens that I have two 56" 1080P HDTVs at my disposal. So I had the bright idea to set these TVs up as spectator monitors with 4 screens on each TV. Since I don't have the hardware to just do dual outputs from each computer and put them on the TV, I am looking for network remote monitor software.

Does anyone know of any good software that wouldn't lag up the players?

Thanks,
Indybird